Can i use 2005's 1098-t towards my 2006 return?

Answer 1

No; there is no carryover on education expenses. Your 2005 1098-T shows the qualified tuition for 2005, so it is only reportable on the 2005 return.

If the amount is substantial, it might be worth amending your 2005 return.

Answer 2

Nope. You can only use it for the year the tuition was paid.

However, you have up to three years from the original filing due date to amend a return. You have the option to file a 1040X to amend your 2005 return to add the information from the 1098T.

Answer 3

No. Try amending your 2005 return, if it wasn't used in '05.